using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.PolicyInjection;
using System.ComponentModel;
using System.Windows.Forms;

namespace EntLibContrib.PolicyInjection.CallHandlers
{
    /// <summary>
    /// An attribute used to apply the <see cref="CursorCallHandler"/> to the target.
    /// </summary>
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Property | AttributeTargets.Method)]
    public class CursorCallHandlerAttribute : HandlerAttribute
    {
        private string name;
        private CursorConverter converter = new CursorConverter();

        /// <summary>
        /// Get or sets the cursor used by the handler.
        /// </summary>
        /// <value>cursor name.</value>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        public Cursor Cursor
        {
            get { return (Cursor)converter.ConvertFromString(Name); }
        }

        /// <summary>
        /// Derived classes implement this method. When called, it
        /// creates a new call handler as specified in the attribute
        /// configuration.
        /// </summary>
        /// <returns>A new call handler object.</returns>
        public override ICallHandler CreateHandler()
        {
            return new CursorCallHandler(Cursor);
        }
    }
}
